Pain on both sides of the rib cage is not directly related to cancer, which is a relatively common clinical symptom and is related to many factors. Pain on both sides of the rib cage is a symptom, which is called pain in both sides of the rib cage in Chinese medicine. Pain on both sides of the rib cage can be caused by many kinds of diseases, such as costochondritis and rib neuralgia, and the presence of bilateral pain at the same time should be considered as a somatization symptom caused by anxiety and depression. Pain on both sides of the rib cage is usually not directly related to tumor, so if you have pain on both sides of the rib cage, you should go to a hospital to get a better examination, a clear diagnosis and symptomatic medication or other treatment under the guidance of a doctor. If you have pain on both sides of your ribs, you can make lifestyle adjustments under the guidance of your doctor. It is very rash to judge that a person has cancer just from the symptoms of rib pain.